Liu Bei (, ; ; 161 – 10 June 223 AD), courtesy name Xuande (), was a Chinese warlord in the late Eastern Han dynasty who later became the founding emperor of Shu Han, one of the Three Kingdoms of Chin
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dc9ee4f3472b84dc20807ec04033ae3194c52347e1481e7bf423d77cec1a78. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f91c1b53-c69c-4db6-854c-e14b803d6e71.json and https://artists.proofprofile.net/proofs/artist/f91c1b53-c69c-4db6-854c-e14b803d6e71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de9d699d32aaa9d520050c463609389358439368cb3727c1bee8352f4c9ddf9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKZV1424988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a7ea8ecb85a9d0c6656fa947d071e3fa2b951ec0c0e796ca489a64679938d2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDH71150002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595eee5de4d0975f5c36c37af4f6e129b8b710900c97bda48c8f3948c1e327d5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2171795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc94de9d98f8859b24712a529290191eefa3332f515f98728097312d87e7ff5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1601724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81198f5e1caa2eeefae721b79633c6e7ebe953246689cebbb69a3a76e29c3810. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1983327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bce296ebd2bcac100288bb4b8359d6505675c9358dad788950695180e5a388. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE2001355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bc4410205230f033775a7ae2fc66a84e71e394d671e2fba0111a791da26a71. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT2H2400361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c177608ba34a5042bc46db1ededa74e0f149aa93d630fb283004f0f1cd13f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZXT2353149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75b7b28432e0416cd99bdfb5dfc29cffa8b8cf3eb851d905c38f20f449e80f2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITFGO2400107.
ASOT 1201 - A State of Trance Episode 1201 [Including Universal Religion Chapter 7 (Mixed by Armin van Buuren) [Recorded Live at Privilege, Ibiza]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba9e7a080a9bf3470083f3ba00824505dea57c25fe417ce1c8de9e76acaa124. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF712410039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a75bce8666d32fbec45540ac4727dc2da49deada109ed2e684b21972dc24266. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1700740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dd476e2f8a6bd54d79390268729a38c12eea7bdb3c86b3aa4e91ebc422dea7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1983326.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc8ee92f09899c89f0bff40d0a9d5625d89adcf7f3dd56ccbae61dff8fa7836. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE2008381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990e67ed59e1736acd04a758394b088da2ccbf5b3822a3a063ffd3899e515ad8. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE2008383.
FSOE 880 - Future Sound Of Egypt Episode 880
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf044d2026737114b11a32db62a2ee0de82088229b735f024f0fb2992fc981b35. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKRMQ2401285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac49f1ec7e0b57888811ff943ae9890199ef75741fd9ea7c382fa59fd33671e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA2207562.